When you run the installation file of an Avast or AVG product on your Windows 11 or Windows 10 PC, you may see the Package Broken or Not a Valid Win32 Application ...

I get "%1 is not a valid Win32 application" when trying to start the Microsoft MTA Stacks in COntrol Panel > Administrative Tools > ServicesI also get " is ...

I've downloaded the Quake 4 demo.exe from multiple locations and everytime I run the .exe I get the error "Quake4_demo.exe is not a valid win32 ...